不同類型立交橋道路高桿照明失能眩光評價指標(biāo)限值研究
[Abstract]:This paper is the third phase of the 2012 National Natural Science Foundation Project (item number: 51178299), "study on Lighting Safety of Urban Interchange based on High dynamic Image Technology". Urban flyovers usually use high-rod lighting to solve the problem of night traffic. The multi-level three-dimensional space structure can realize the continuous multi-direction driving of vehicles, which plays an important role in alleviating traffic pressure. However, there is still a lack of relevant research on glare evaluation index of lighting loss of overpass. The purpose of this paper is to put forward the evaluation index and its limit value suitable for the glare of the overpass road in China, which will be of great significance to the night driving safety of the overpass road. According to the statistics of the type of overpass, the most typical three types of overpass are divided, alfalfa leaf overpass and semi-directional overpass. Through field investigation, computer simulation and subjective evaluation, the evaluation indexes of road disabling glare in different parts of overpass are determined as threshold increment TI and glare value GR.. Tianjin, Beijing, Wuhan, Handan, Zhengzhou, Chongqing, Chengdu, Shanghai, etc. The high dynamic range image technique was used to measure the road luminosity parameters at 34 test points of 17 overpasses in 8 cities. The threshold increment TI value and glare value GR value of each point were calculated. In this paper, the DIALux lighting design software is used to simulate the semi-directional overpass, and the alfalfa leaf overpass is simulated with the research results of the last stage of this paper. The parameter model of three typical overpasses has been built. The simulation results show that the TI value and the GR value are higher than those of the ordinary road glare standard on the premise of meeting the road lighting standard of the overpass. In view of the fact that the TI,GR value is generally higher than the standard value in the field measurement and simulation, the semantic difference method is used to study the subjective evaluation of the lighting scenes of 34 overpass bridges. The results show that both TI and GR are highly correlated with subjective evaluation of disability glare perception, which indicates that both threshold increment and glare value can be used as indicators for evaluating disability glare of high rod lighting mode of overpass road. In the main line and across line, the threshold increment TI is suitable to evaluate the glare loss, while the glare value GR is more suitable for the ramp.
【學(xué)位授予單位】:天津大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TU113.666
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